%% Example: App with a Slider Callback
% This app contains a gauge that tracks the value of a slider
% as the user moves the thumb. The |ValueChangingFcn| callback for
% the slider gets the current value of the slider from the |event|
% argument. Then it moves the gauge needle to that value. 
%  
% 
% <<../track_slider_screenshot.png>> 
%
% Copyright 2017 The MathWorks, Inc.